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From "Madushanka Fonseka (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DERBY-6487) I've been working with Derby to make it possible to assist fuzzy based queries. Analysing imprecise data hidden inside crisp data is famous among researchers.Intention of opening a JIRA issue is submitting Paper for Apache community to review.
Date Wed, 19 Feb 2014 17:50:21 GMT
Madushanka Fonseka created DERBY-6487:
-----------------------------------------

             Summary: I've been working with Derby to make it possible to assist fuzzy based
queries.  Analysing imprecise data hidden inside crisp data is famous among researchers.Intention
of opening a JIRA issue is submitting  Paper for Apache community to review.
                 Key: DERBY-6487
                 URL: https://issues.apache.org/jira/browse/DERBY-6487
             Project: Derby
          Issue Type: Improvement
          Components: Miscellaneous, SQL
            Reporter: Madushanka Fonseka


I have selected fuzzy logy as my model of computing and Derby as my database. So "Select *
from employee where salary is high " can be executed. I'll provide more insights in future.

 INTRODUCTION : Relational database systems manage only crisp data.Relational models lack
flexibility in defining and handling vague data. Due to the limitations in Relational models
& SQL intelligent querying  cannot be made against relational databases.This research
is an effort to enhance & extend relational model to assist fuzzy query in relational
models. Fuzzy queries are linguistic expressions and based on SQL.

MOTIVATION                         
Relational databases are pervasive in modern day computing.
Corperate relational databases contain large amount of data which can be used to provide intelligent
solutions.
Relational database systems can be extended for data mining and machine learning operations.


Why Fuzzy Set Theory ? 
  • In order to study the contextual semantics of vague data Fuzzy Set Theory provides an
ideal framework.
  • Both Fuzzy Set Theory and Relational Database Theory based on “Sets”. • Hence,
 joining them together makes a strong framework to study imprecise data. 
  • Linguistic expressions closed to natural language could be defined using fuzzy logy.

 



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